Bored? Go download a free game! I’m not going to bother rating them since I like them all.
Maelstrom – (Maelstrom) A space combat game.
Project: Starfighter – (starfighter) a space arcade game.
Powermanga – (powermanga) Arcade 2D shoot-them-up game.
The Ur-Quan Masters – (uqm) a port of the classic game Star Control II.
Battle for Wesnoth – (wesnoth) a fantasy turn-based strategy game.
The short names in parentheses are the Fedora Core/Extras package names for these games. I’m sure these games are pre-packaged by/for other distros, too.